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| author | Anup Patel <anup.patel@wdc.com> | 2019-08-08 09:40:22 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-08-09 10:08:33 +0300 |
| commit | dbff3e9f12f0abbdf475baaef4760c24af0d4227 (patch) | |
| tree | 861e23030839b2d218a391d3e29f51398be3b39d /lib/sbi/sbi_console.c | |
| parent | b1318e578b81690d7dcc57019e3f26c2b563bd74 (diff) | |
| download | opensbi-dbff3e9f12f0abbdf475baaef4760c24af0d4227.tar.xz | |
lib: Introduce sbi_dprintf() API
This patch introduces new sbi_dprintf() API for runtime debug
prints. The sbi_dprintf() will print to console for a given
HART only when SBI_SCRATCH_DEBUG_PRINTS option in enabled in
sbi_scratch for this HART.
We can now add debug prints using sbi_dprintf() at important
places in OpenSBI sources. These debug prints will only show
up when previous booting stage or compile time parameter sets
the SBI_SCRATCH_DEBUG_PRINTS option in scratch space.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'lib/sbi/sbi_console.c')
| -rw-r--r-- | lib/sbi/sbi_console.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/sbi/sbi_console.c b/lib/sbi/sbi_console.c index 30fb2c8..03dcdb2 100644 --- a/lib/sbi/sbi_console.c +++ b/lib/sbi/sbi_console.c @@ -375,6 +375,19 @@ int sbi_printf(const char *format, ...) return retval; } +int sbi_dprintf(struct sbi_scratch *scratch, const char *format, ...) +{ + va_list args; + int retval = 0; + + va_start(args, format); + if (scratch->options & SBI_SCRATCH_DEBUG_PRINTS) + retval = print(NULL, NULL, format, args); + va_end(args); + + return retval; +} + int sbi_console_init(struct sbi_scratch *scratch) { console_plat = sbi_platform_ptr(scratch); |